2. Bananas

Bananas are loaded with potassium and magnesium. These compounds don’t just refuel your muscles post-workout—magnesium also serves as a natural sleep aid. A sleep expert told us he regularly makes banana tea, like a specialty sleep cocktail, since the peel has about 3x the magnesium as the fruit. Read all about it—and 14 other things you can do during the day to help you fall asleep faster at night—here.